Question

3. What is the explicit formula for the arithmetic sequence 2, 7, 12, 17, ...?

Answer 1

Explanation:

The given sequences are;

2,7,12,17......

difference =5

by using formula,

we get,

tn=a+(n-1)d

tn= 2+(n-1)5

Therefore, tn is 5n-3 is required formula for this arithmetic sequences.

Hope it helps....